SPLongOperation and Threadabortexception

SPLongOperation allows you to show the nice SharePoint spinner page when you have code in a SharePoint application page which runs for quite a while  (See for example Compiling SharePoint 2007 audiences using the SharePoint object model (C# code sample) ). Unfortunately there is not a lot of documentation about it the use of it out there. So when I stumbled upon a ThreadAbortException when trying to create a new SharePoint site in my application page. Apparently the only way around it was adding an empty Catch block... Maybe this is because internally SPLongOperation uses Response.End internally (See http://support.microsoft.com/kb/312629 ) but I'm not sure. Can anyone confirm that this is the way to go?

try
{
   string sRedirectUrl = "http://moss";

   using (SPLongOperation operation = new SPLongOperation(this.Page))
   { 
       operation.Begin();
                
        using (SPSite sitecollection = new SPSite("http://moss"))
        {
            using (SPWeb toplevelsite = sitecollection.OpenWeb())
            {
               toplevelsite.AllowUnsafeUpdates = true;
               toplevelsite.Update();

               using (SPWeb newsite = toplevelsite.Webs.Add("demo", "demo", "", 

Convert.ToUInt32(1043), "STS#0", false, false))
               {
                  //TODO Add some extra stuff in here ...
                  sRedirectUrl = newsite.Url;
               }
            }
        }
        operation.End(sRedirectUrl);
    }      
            
}
catch (ThreadAbortException tex) { }
catch (Exception ex)
{
    SPUtility.TransferToErrorPage(ex.ToString());
}

Tags van Technorati: sharepoint,development,moss+2007,moss,microsoft